Finding the Fourth Proportional to 3,755,455.68, 5,182,437.60 and 2,145,720
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Solution
The fourth proportional to 3,755,455.68, 5,182,437.60 and 2,145,720 is: 2,961,041.47
Step by Step Solution
- Step 1: Write the proportion equation
3,755,455.68 : 5,182,437.60 = 2,145,720 : x - Step 2: Convert to fraction form
3,755,455.68/5,182,437.60 = 2,145,720/x - Step 3: Cross multiply
3,755,455.68x = 5,182,437.60 × 2,145,720 - Step 4: Simplify right side
3,755,455.68x = 11,120,060,007,072 - Step 5: Solve for x
x = 11,120,060,007,072/3,755,455.68 - Step 6: Final answer
x = 2,961,041.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.